Use TLS or SSL? – If your server requires TLS or SSL select the appropriate setting, otherwise set to No.

Port – Select 25 for a default port setting, if you use TLS or SSL then choose the 465, otherwise choose Custom Port and enter your port number in the input box to the right.

Once you’ve set your options and clicked the Update Options button, you can use the Test Connection area to send yourself a test email using your SMTP settings. If everything is working, you should see the message TEST EMAIL SENT – Connection Verified. and of course receive the test email in your account.

FAQ

I’ve installed a plugin that sends email and does not seem to be working correctly with the Swift SMTP Plugin

1.Open the problem Plugin in a text editor.
2.Do a search for the function mail( and replace it with wp_mail(.
3.Save and upload the revised plugin and it should now use the SMTP setting for sending mail.